tests: Make temporary filenames unique per test (#704)

When two tests share a temporary filename they can cause ctest to fail
when run in parallel mode since both would attempt to operate on the
same file if scheduled to run at the same time.

To fix this, filenames in the smaller tests have been individually
renamed, and for the bigger tests a prefix has been added to make them
unique.

The complete list of conflicting filenames (which were then manually
inspected) was generated by running the following command in 'tests':

    for file in $(grep -hoER \"\\w+\\.\\w+\" | sort | uniq -d)
        do echo $file
        grep -Rn $file
        echo
    done | less

tests/alaw_test.c

@@ -49,7 +49,7 @@ main (void)
 
 	print_test_name ("alaw_test", "encoder") ;
 
-	filename = "test.raw" ;
+	filename = "alaw_test.raw" ;
 
 	sf_info_setup (&sfinfo, SF_FORMAT_RAW | SF_FORMAT_ALAW, 44100, 1) ;
 

tests/command_test.c

@@ -115,8 +115,8 @@ main (int argc, char *argv [])
 	{	/*	Preliminary float/double normalisation tests. More testing
 		**	is done in the program 'floating_point_test'.
 		*/
-		float_norm_test		("float.wav") ;
+		float_norm_test		("cmd_float.wav") ;
-		double_norm_test	("double.wav") ;
+		double_norm_test	("cmd_double.wav") ;
 		test_count ++ ;
 		} ;
 

tests/compression_size_test.c

@@ -37,6 +37,8 @@
 #define	SAMPLE_RATE		16000
 #define	DATA_LENGTH		(SAMPLE_RATE)
 
+static const char CMP_TEST_PREFIX[] = "cmp" ;
+
 static float data_out [DATA_LENGTH] ;
 
 static inline float
@@ -53,6 +55,8 @@ vorbis_test (void)
 	float max_abs = 0.0 ;
 	unsigned k ;
 
+	get_unique_test_name (&filename, CMP_TEST_PREFIX) ;
+
 	print_test_name ("vorbis_test", filename) ;
 
 	/* Generate float data. */
@@ -123,6 +127,8 @@ compression_size_test (int format, const char * filename)
 	double quality ;
 	int k ;
 
+	get_unique_test_name (&filename, CMP_TEST_PREFIX) ;
+
 	snprintf (q3_fname, sizeof (q3_fname), "q3_%s", filename) ;
 	snprintf (q6_fname, sizeof (q6_fname), "q6_%s", filename) ;
 

tests/floating_point_test.tpl

@@ -38,6 +38,8 @@
 
 #define	SAMPLE_RATE			16000
 
+static const char FPT_TEST_PREFIX[] = "fpt" ;
+
 static void	float_scaled_test	(const char *filename, int allow_exit, int replace_float, int filetype, double target_snr) ;
 static void	double_scaled_test	(const char *filename, int allow_exit, int replace_float, int filetype, double target_snr) ;
 
@@ -206,6 +208,7 @@ float_scaled_test (const char *filename, int allow_exit, int replace_float, int
 	double		snr ;
 	int			byterate ;
 
+	get_unique_test_name (&filename, FPT_TEST_PREFIX) ;
 	print_test_name ("float_scaled_test", filename) ;
 
 	gen_windowed_sine_float (float_data, DFT_DATA_LENGTH, 0.9999) ;
@@ -259,6 +262,7 @@ double_scaled_test (const char *filename, int allow_exit, int replace_float, int
 	double		snr ;
 	int			byterate ;
 
+	get_unique_test_name (&filename, FPT_TEST_PREFIX) ;
 	print_test_name ("double_scaled_test", filename) ;
 
 	gen_windowed_sine_double (double_data, DFT_DATA_LENGTH, 0.9999) ;
@@ -317,6 +321,7 @@ static void
 	int			max ;
 	unsigned	k ;
 
+	get_unique_test_name (&filename, FPT_TEST_PREFIX) ;
 	print_test_name ("[+ (get "float_name") +]_[+ (get "int_name") +]_[+ (get "end_name") +]_test", filename) ;
 
 	gen_windowed_sine_[+ (get "float_name") +] ([+ (get "float_name") +]_data, ARRAY_LEN ([+ (get "float_name") +]_data), 0.9999) ;

tests/header_test.tpl

@@ -106,7 +106,7 @@ main (int argc, char *argv [])
 		update_seek_int_test ("header_int.aiff", SF_FORMAT_AIFF) ;
 		update_seek_float_test ("header_float.aiff", SF_FORMAT_AIFF) ;
 		update_seek_double_test ("header_double.aiff", SF_FORMAT_AIFF) ;
-		header_shrink_test ("header_shrink.wav", SF_FORMAT_AIFF) ;
+		header_shrink_test ("header_shrink.aiff", SF_FORMAT_AIFF) ;
 		extra_header_test ("extra.aiff", SF_FORMAT_AIFF) ;
 		test_count++ ;
 		} ;

tests/headerless_test.c

@@ -44,11 +44,11 @@ main (void)
 {
 	old_test () ;
 
-	headerless_test ("raw.vox", SF_FORMAT_VOX_ADPCM, SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM) ;
+	headerless_test ("headerless.vox", SF_FORMAT_VOX_ADPCM, SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM) ;
-	headerless_test ("raw.gsm", SF_FORMAT_GSM610, SF_FORMAT_RAW | SF_FORMAT_GSM610) ;
+	headerless_test ("headerless.gsm", SF_FORMAT_GSM610, SF_FORMAT_RAW | SF_FORMAT_GSM610) ;
 
-	headerless_test ("raw.snd", SF_FORMAT_ULAW, SF_FORMAT_RAW | SF_FORMAT_ULAW) ;
+	headerless_test ("headerless.snd", SF_FORMAT_ULAW, SF_FORMAT_RAW | SF_FORMAT_ULAW) ;
-	headerless_test ("raw.au" , SF_FORMAT_ULAW, SF_FORMAT_RAW | SF_FORMAT_ULAW) ;
+	headerless_test ("headerless.au" , SF_FORMAT_ULAW, SF_FORMAT_RAW | SF_FORMAT_ULAW) ;
 
 	return 0 ;
 } /* main */

tests/lossy_comp_test.c

@@ -44,6 +44,8 @@
 
 #define		LCT_MAX(x, y)	((x) > (y) ? (x) : (y))
 
+static const char LCT_TEST_PREFIX[] = "lct" ;
+
 static	void	lcomp_test_short	(const char *filename, int filetype, int chan, double margin) ;
 static	void	lcomp_test_int		(const char *filename, int filetype, int chan, double margin) ;
 static	void	lcomp_test_float	(const char *filename, int filetype, int chan, double margin) ;
@@ -651,6 +653,7 @@ lcomp_test_short (const char *filename, int filetype, int channels, double margi
 	sf_count_t		datalen ;
 	short			*orig, *data ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("lcomp_test_short", filename) ;
 
 	datalen = BUFFER_SIZE / channels ;
@@ -838,6 +841,7 @@ lcomp_test_int (const char *filename, int filetype, int channels, double margin)
 	double			scale, max_val ;
 	int				*orig, *data ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("lcomp_test_int", filename) ;
 
 	datalen = BUFFER_SIZE / channels ;
@@ -1035,6 +1039,7 @@ lcomp_test_float (const char *filename, int filetype, int channels, double margi
 	float			*orig, *data ;
 	double			half_max_abs ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("lcomp_test_float", filename) ;
 
 	datalen = BUFFER_SIZE / channels ;
@@ -1229,6 +1234,7 @@ lcomp_test_double (const char *filename, int filetype, int channels, double marg
 	double			*orig, *data ;
 	double			half_max_abs ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("lcomp_test_double", filename) ;
 
 	datalen = BUFFER_SIZE / channels ;
@@ -1424,6 +1430,8 @@ sdlcomp_test_short	(const char *filename, int filetype, int channels, double mar
 	short			*orig, *data, *smooth ;
 
 channels = 1 ;
+
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("sdlcomp_test_short", filename) ;
 
 	datalen = BUFFER_SIZE ;
@@ -1644,6 +1652,7 @@ sdlcomp_test_int	(const char *filename, int filetype, int channels, double margi
 
 channels = 1 ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("sdlcomp_test_int", filename) ;
 
 	datalen = BUFFER_SIZE ;
@@ -1867,6 +1876,7 @@ sdlcomp_test_float	(const char *filename, int filetype, int channels, double mar
 
 channels = 1 ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("sdlcomp_test_float", filename) ;
 
 	switch ((filetype & SF_FORMAT_SUBMASK))
@@ -2111,6 +2121,8 @@ sdlcomp_test_double	(const char *filename, int filetype, int channels, double ma
 	double			*orig, *data, *smooth, half_max_abs, scale ;
 
 channels = 1 ;
+
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("sdlcomp_test_double", filename) ;
 
 	switch ((filetype & SF_FORMAT_SUBMASK))
@@ -2352,6 +2364,7 @@ read_raw_test (const char *filename, int filetype, int channels)
 	short			*orig, *data ;
 	int				k ;
 
+	get_unique_test_name (&filename, LCT_TEST_PREFIX) ;
 	print_test_name ("read_raw_test", filename) ;
 
 	datalen = ARRAY_LEN (orig_buffer.s) / 2 ;

tests/string_test.c

@@ -37,6 +37,8 @@
 #define	BUFFER_LEN			(1 << 10)
 #define LOG_BUFFER_SIZE		1024
 
+static const char STR_TEST_PREFIX[] = "str" ;
+
 static void	string_start_test (const char *filename, int typemajor) ;
 static void	string_start_end_test (const char *filename, int typemajor) ;
 static void	string_multi_set_test (const char *filename, int typemajor) ;
@@ -207,6 +209,7 @@ string_start_end_test (const char *filename, int typemajor)
 	SF_INFO		sfinfo ;
 	int			errors = 0 ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name ("string_start_end_test", filename) ;
 
 	memset (&sfinfo, 0, sizeof (sfinfo)) ;
@@ -356,6 +359,7 @@ string_start_test (const char *filename, int formattype)
 	int			errors = 0 ;
 	int			typemajor = SF_FORMAT_TYPEMASK & formattype ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name ("string_start_test", filename) ;
 
 	memset (&sfinfo, 0, sizeof (sfinfo)) ;
@@ -497,6 +501,7 @@ string_multi_set_test (const char *filename, int typemajor)
 	SF_INFO		sfinfo ;
 	int			count ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 
 	memset (&sfinfo, 0, sizeof (sfinfo)) ;
@@ -566,6 +571,7 @@ string_rdwr_test (const char *filename, int typemajor)
 	sf_count_t frames ;
 	const char * str ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 	create_short_sndfile (filename, typemajor | SF_FORMAT_PCM_16, 2) ;
 
@@ -618,6 +624,7 @@ string_short_rdwr_test (const char *filename, int typemajor)
 	sf_count_t frames = BUFFER_LEN ;
 	const char * str ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 
 	memset (&sfinfo, 0, sizeof (sfinfo)) ;
@@ -687,6 +694,7 @@ static void
 software_string_test (const char *filename)
 {	size_t k ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 
 	for (k = 0 ; k < 50 ; k++)
@@ -727,6 +735,7 @@ string_rdwr_grow_test (const char *filename, int typemajor)
 	sf_count_t frames ;
 	const char * str ;
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 
 	/* Create a file that contains some strings. Then open the file in RDWR mode and
@@ -785,6 +794,7 @@ string_header_update (const char *filename, int typemajor)
 	const char * str ;
 	const int GROW_BUFFER_AMOUNT = 4 ; /* this should be less than half the size of the string header */
 
+	get_unique_test_name (&filename, STR_TEST_PREFIX) ;
 	print_test_name (__func__, filename) ;
 
 	/* Create a short file. */

tests/ulaw_test.c

@@ -49,7 +49,7 @@ main (void)
 
 	print_test_name ("ulaw_test", "encoder") ;
 
-	filename = "test.raw" ;
+	filename = "ulaw_test.raw" ;
 
 	sf_info_setup (&sfinfo, SF_FORMAT_RAW | SF_FORMAT_ULAW, 44100, 1) ;
 

tests/utils.tpl

@@ -104,6 +104,8 @@ void	count_open_files (void) ;
 void	increment_open_file_count (void) ;
 void	check_open_file_count_or_die (int lineno) ;
 
+void	get_unique_test_name (const char ** filename, const char * test) ;
+
 #ifdef SNDFILE_H
 
 static inline void
@@ -851,6 +853,15 @@ check_open_file_count_or_die (int lineno)
 #endif
 } /* check_open_file_count_or_die */
 
+void
+get_unique_test_name (const char ** filename, const char * test)
+{	static char	buffer [1024] ;
+
+	snprintf (buffer, sizeof (buffer), "%s_%s", test, *filename) ;
+
+	*filename = buffer ;
+} /* get_unique_test_name */
+
 void
 write_mono_file (const char * filename, int format, int srate, float * output, int len)
 {	SNDFILE * file ;

tests/write_read_test.tpl

@@ -42,6 +42,8 @@
 
 #define	SILLY_WRITE_COUNT	(234)
 
+static const char WRT_TEST_PREFIX[] = "wrt" ;
+
 [+ FOR data_type
 +]static void	pcm_test_[+ (get "type_name") +] (const char *str, int format, int long_file_ok) ;
 [+ ENDFOR data_type
@@ -446,6 +448,7 @@ pcm_test_[+ (get "type_name") +] (const char *filename, int format, int long_fil
 	/* Sd2 files cannot be opened from an existing file descriptor. */
 	allow_fd = ((format & SF_FORMAT_TYPEMASK) == SF_FORMAT_SD2) ? SF_FALSE : SF_TRUE ;
 
+	get_unique_test_name (&filename, WRT_TEST_PREFIX) ;
 	print_test_name ("pcm_test_[+ (get "type_name") +]", filename) ;
 
 	sfinfo.samplerate	= 44100 ;
@@ -1008,6 +1011,7 @@ empty_file_test (const char *filename, int format)
 	/* Sd2 files cannot be opened from an existing file descriptor. */
 	allow_fd = ((format & SF_FORMAT_TYPEMASK) == SF_FORMAT_SD2) ? SF_FALSE : SF_TRUE ;
 
+	get_unique_test_name (&filename, WRT_TEST_PREFIX) ;
 	print_test_name ("empty_file_test", filename) ;
 
 	unlink (filename) ;